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The SYN-Flood attack is currently the most common DDoS attack on the network, It is also the most classic denial of service attack. It takes advantage of a defect in the implementation of TCP protocol. By sending a large number of attack messages with forged source addresses to the ports where the network service is located, it may cause the half-open connection queue in the target server to be full, thus preventing other legitimate users from accessing. This kind of attack was discovered as early as 1996, but it still shows great vitality. Many operating systems, even firewalls and routers, cannot effectively defend against this kind of attack, and it is very difficult to trace it because it can easily forge the source address. Its packet characteristics are usually that the source sends a large number of SYN packets and lacks the last handshake ACK reply of the three handshakes.EquestrianObserver1 has received!4. If the feedback message indicates "unable to access the directory host" or "access failed, general error", it indicates that there is a fault in the line connection between the computer network card and the router, and the connection line needs to be checked at this time.Whoever commits the crime of intentional injury and causes serious injury shall be punished according to the following circumstances:FX新喜剧《亚特兰大》早早就续订了第二季，不过因为主演Donald Glover要参演《星球大战》Han Solo外传电影（饰演要角Lando Calrissian）的关系，该剧在TCA上宣布17年不会有第二季，要推迟到18年才播出。18岁的平凡女生杉菜转入了精英学校英德大学却与同学们格格不入。学校里有四个外形阳光帅气，家境富裕的学生：道明寺，花泽类，西门和美作。因为杉菜看不惯道明寺飞扬跋扈的模样，仗义的杉菜与他产生了争执，从此之后，道明寺常常恶作剧作弄杉菜。之后一系列的事情发生，使杉菜与道明寺之间的误会逐渐的加深。但每到危急时刻，花泽类都会出现帮助杉菜并帮其解围。杉菜凭借其杂草般顽强的生命力逐渐改变了这四个男生对其不好的印象，与他们的关系也逐渐缓和，变成了朋友，从平凡女生变成了全校同学的榜样。道明寺也因为在恶作剧杉菜的过程中，被她不屈不挠的乐观天性所吸引，不知不觉的爱上了杉菜。两个人经历了重重阻碍，最终走在了一起，收获了爱情。